Because the product measurement principle is relatively complex, the 37-degree bracelet adopts dual MCU architecture. Through the self-made optical sensor, you can accurately capture the tiny optical change of 30 milliseconds, and you will feel nothing during the whole measurement process. The monitoring function of relatives and friends' data care is really designed for China people, which allows you to "monitor" the changes of parents' or relatives' signs anytime and anywhere, and realize real care.